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Finding the Fourth Proportional to 17,904,987.60, 26,857,481.40 and 15,469,544.40

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Solution

The fourth proportional to 17,904,987.60, 26,857,481.40 and 15,469,544.40 is: 23,204,316.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,904,987.60 : 26,857,481.40 = 15,469,544.40 : x
  2. Step 2: Convert to fraction form
    17,904,987.60/26,857,481.40 = 15,469,544.40/x
  3. Step 3: Cross multiply
    17,904,987.60x = 26,857,481.40 × 15,469,544.40
  4. Step 4: Simplify right side
    17,904,987.60x = 415,473,000,989,474.12
  5. Step 5: Solve for x
    x = 415,473,000,989,474.12/17,904,987.60
  6. Step 6: Final answer
    x = 23,204,316.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.